\begin{tabular}{l*{2}{c}}
\hline\hline
                    &Low-Wage Workers&High-Wage Workers\\
\hline
t4\_r1\_p\_bh          &       0.315&       0.459\\
[1em]
t4\_r2\_p\_bh          &       0.016&       0.159\\
[1em]
t4\_N                &         796&         797\\
\hline\hline
\end{tabular}
